But there are plenty of ways to show the one you love that you love them this week. If you like country, check out Willie Nelson or the Yonder Mountain String Band. If you crave soul, try Gladys Knight or Jeffrey Osborne. If you like to rock, there's Flogging Molly or We the Kings. If you prefer sensitive singer-songwriters, check out Brandi Carlile or Kris Allen. And if you're FREAKING HUMAN, there's All-4-One, above, whose slow jams taught us all how to love (awkwardly) in ninth grade.

Get Carole Liparoto's concert picks after the jump...

Jeffrey OsborneFRIDAY 8 p.m. The Mahaffey Theater, 400 First Street S., St. Petersburg. $35-$75. (727) 892-5767.Fly high upon the wings of love this V-Day weekend with soulful romantic Jeffrey Osborne. While Osborne is best known for R&B lite songs (including the aforementioned On the Wings of Love), his buttery croon works nicely overtop funk and pop, too. Show proceeds will benefit the Pinellas County Urban League.

Flogging MollyWith the Architects, Frank Turner SUNDAY 6 p.m. The Ritz, 1503 Seventh Ave., Ybor City. Sold Out. (813) 247-2555.Merging the traditional Celtic sounds of his native Dublin with the wallet-chain punk of adulthood home Los Angeles, Dave King leads Flogging Molly into a 13th Guinness-soaked year. Odes to wicked hangovers, brawls and sea scourge never sound as good in your living room as they do bar-side. Consequently, this show is sold out.

All-4-One SATURDAY 7:30 p.m. and SUNDAY 6:30 p.m. Treasure Island Yacht and Tennis Club, 400 Treasure Island Causeway, Treasure Island. $49.95-$125 per couple. (727) 367-4511.You may not recall the names of your clammy-palmed school dance partners, but if you’re a ’90s kid, you totally remember these lyrics: “I swear, by the moon and the stars in the sky, I’ll be there.” The gentle caress of All-4-One’s hit songs I Swear and I Can Love You Like That made the virtuous male vocal group a staple of the Gen Y slow dance. Go on and cry those happy tears.

Gladys KnightSATURDAY 8 p.m. Ruth Eckerd Hall, 1111 McMullen-Booth Road, Clearwater. $52.50-$82.50. (727) 791-7400. Take a trip with the Empress of Soul through an ever-evolving catalog. Minus the shimmying Pips (who retired in the late ’80s), the great Gladys Knight offers doo wop-influenced Every Beat of My Heart, Gospel-tinged I Heard It Through the Grapevine, soul smash Midnight Train to Georgia, and black-tie jazz standards like Gershwin’s The Man I Love. After seeing Knight on 30 Rock (“I am trying to take a nap!”), I am convinced she may even have a few zingers lined up, too.

Yonder Mountain String BandSATURDAY 7 p.m. The Ritz, 1503 Seventh Ave., Ybor City. $27.50. (813) 247-2555.Nederland, Colo.’s Yonder Mountain String Band is kind of like the Widespread Panic of bluegrass music. The group’s jam-leaning “newgrass” style is as much Bill Monroe as it is Grateful Dead. And that makes the live show, essentially, a hoedown with better lighting and effects. The banjo pickers’ fast fingers are only at risk of being surpassed by a rapidly growing fan base.

Worldwide Zoo CD Release Party SATURDAY 9 p.m. New World Brewery, 1313 E. Eighth Ave., Ybor City. $7. (813) 248-4969.Not since Mr. Bungle has a group been so wildly and proficiently all over the map. In other words, the members of Tampa’s Worldwide Zoo are experts at being musically spaced-out. Saturday, the experimental trio will unveil a new disc of indie, rock, jazz, jam, funk and more. It’s a group that doesn’t just bend genre rules, but snaps them in half.

Brandi CarlileWith Amy RayTHURSDAY 7:30 p.m. Capitol Theatre, 405 Cleveland St., Clearwater. Sold Out. (727) 791-7400.As a kid in rural Ravensdale, Wash. — population 816 — Brandi Carlile turned to music to keep her company. Now 28, Carlile finds herself in the presence of all-stars Elton John, the Indigo Girls’ Amy Ray and producer Rick Rubin on ’09 release Give Up the Ghost. Strummy and pastoral with well-developed vocals, this excellent collection evokes a little Neko Case here, a little Melissa Etheridge there. Ray herself will play a solo set here; both Indigo Girls, as well as Carlile, will perform Feb. 27 at the House of Blues in Orlando — good to know, since the Clearwater show is sold out.

Kris AllenWith Allison IrahetaSATURDAY 7 p.m. The Venue, 2675 Ulmerton Road, Clearwater. Free before 10 p.m. thevenueclub.comThis event, dubbed the Meet Ball (nice), is a big singles party on the night before Valentine's Day, starring the guy who beat Adam Lambert on American Idol. Sponsored by WFLZ-FM 93.3, it's only sort of a concert -- Allen is expected to play about three acoustic songs. But it is free, and fellow Idol alum Allison Iraheta is coming along for the ride. And the Venue is offering a Valentine's Day prix fixe menu for $64.95 per person, with live entertainment onstage each night. Just be sure to call for reservations -- if you haven't done that already, you're probably screwed. -- Jay Cridlin